212161445006263 has 2 divisors, whose sum is σ = 212161445006264. Its totient is φ = 212161445006262.

The previous prime is 212161445006233. The next prime is 212161445006321. The reversal of 212161445006263 is 362600544161212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212161445006263 - 2¹³ = 212161444998071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212161445006233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106080722503131 + 106080722503132.

It is an arithmetic number, because the mean of its divisors is an integer number (106080722503132).

Almost surely, 2^{212161445006263} is an apocalyptic number.

212161445006263 is a deficient number, since it is larger than the sum of its proper divisors (1).

212161445006263 is an equidigital number, since it uses as much as digits as its factorization.

212161445006263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 212161445006263 its reverse (362600544161212), we get a palindrome (574761989167475).

The spelling of 212161445006263 in words is "two hundred twelve trillion, one hundred sixty-one billion, four hundred forty-five million, six thousand, two hundred sixty-three".